| Obsidian | |
|---|---|
| |
| Type | Natural |
| Effects | Unknown |
| Source | Mine |
| Cost to buy | 0 
|
| Cost to sell | 0
|
Obsidian is a block that spawns where Lava is hit by Water, replacing the Lava. This is most commonly found Underground or in the Underworld.
Obsidian is not used for much aside from crafting the Obsidian Skull and Hellstone Bars.